Home / 9,479.27-14,220-3,931.91

Finding the Fourth Proportional to 9,479.27, 14,220 and 3,931.91

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Solution

The fourth proportional to 9,479.27, 14,220 and 3,931.91 is: 5,898.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,479.27 : 14,220 = 3,931.91 : x
  2. Step 2: Convert to fraction form
    9,479.27/14,220 = 3,931.91/x
  3. Step 3: Cross multiply
    9,479.27x = 14,220 × 3,931.91
  4. Step 4: Simplify right side
    9,479.27x = 55,911,689.10
  5. Step 5: Solve for x
    x = 55,911,689.10/9,479.27
  6. Step 6: Final answer
    x = 5,898.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.